Recommendations With Receipts: When LLMs Have to Prove They Behaved
A recommendation list is rarely just a list. On the surface, it says: “Here are ten movies, products, articles, songs, creators, or courses you may like.” Underneath, it often carries a second instruction: “Also do not bury long-tail items, do not over-concentrate exposure, do not violate diversity rules, do not create an audit nightmare, and please do all of this while still looking personalized.” ...